Ndfeb permanent magnet materials have been widely used in modern industry and electronic technology because of its high magnetic energy product, coercive force and high energy density. So that instruments, electroacoustic motor, magnetic separation magnetization and other equipment miniaturization, lightweight, thin become possible. High-end NdFeb magnetic materials have high anticorrosion requirements, and nickel plating process is usually used. Copper pyrophosphate is usually used to create a layer of copper for thickening between the pre-plated nickel and the bright nickel coating. The potassium pyrophosphate produced by Younai has strong complexing ability, high purity and stable quality. With copper pyrophosphate and pure copper anode without oxygen produced by Younai, it can effectively ensure the quality of customers' products and reduce customers' production costs.